A method for generating a data sample in a first frequency band from measurements in a second frequency band. The method includes obtaining a first plurality of samples, obtaining a second plurality of samples, obtaining a mapping model based on the first plurality of samples and the second plurality of samples, obtaining a third plurality of samples, and obtaining the data sample based on the mapping model and the third plurality of samples. Obtaining the first plurality of samples includes measuring a first frequency response of an environment in the first frequency band. Obtaining the second plurality of samples includes measuring a second frequency response of the environment in the second frequency band. Obtaining the third plurality of samples includes measuring a third frequency response of the environment in the second frequency band. Obtaining the data sample includes applying the mapping model on the third plurality of samples.
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11. The method of claim 8, wherein applying the ResNet comprises applying a plurality of ResNet blocks by extracting the third plurality of feature maps from an output of an Lrth ResNet block of the plurality of ResNet blocks where Lr is a number of the plurality of ResNet blocks, extracting the third plurality of feature maps comprising obtaining an (lr+1)th plurality of residual feature maps by applying an lrth ResNet block of the plurality of ResNet blocks on an lrth plurality of residual feature maps where 1≤lr≤Lr, a first plurality of residual feature maps comprising the second plurality of feature maps and the lrth ResNet block comprising two cascaded convolutional layers and a residual connection.
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October 25, 2021
June 11, 2024
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